Chronology Current Month Current Thread Current Date
[Year List] [Month List (current year)] [Date Index] [Thread Index] [Thread Prev] [Thread Next] [Date Prev] [Date Next]

Re: [Phys-l] Image of object placed at focal point



John Clement is right! The question should be about image of object placed at focal plane instead of focal point.
Sorry for the confusion.
Mea Culpa!


Alphonsus

From: "John Clement" <clement@hal-pc.org>
Date: Tue 04/04/2006 6:42 AM GMT+08:00
To: "'Forum for Physics Educators'" <phys-l@carnot.physics.buffalo.edu>
Subject: Re: [Phys-l] Image of object placed at focal point

I think it says the OBJECT is at a point, and does not use the word point in
regard to the image. So do you mean the object at the focal plane?

John M. Clement
Houston, TX

Isn't it a bit confusing to talk about an image being formed at a "point"
?
Perhaps at a "plane" .....but certainly not a dimensionless point!.
That is ... unless it is not a real object at the source ???
.... or as Confucius once said..."He who sits on the point of a tack, is
better off."